Method of bleaching

Details Method of bleaching Method of bleaching

1991-10-28

1993-02-23

Straub, Gary P.

Chemistry of inorganic compounds

Carbon or compound thereof

Oxygen containing

423173, 106464, C01G 2114, C09C 102

Patent

active

051888149

ABSTRACT:
The invention concerns a method of bleaching particles containing calcium carbonate by keeping them in contact with an aqueous solution containing hydrogen peroxide and having a pH-value below 8.

REFERENCES:
patent: 3333919 (1967-08-01), Buckingham
patent: 4572825 (1986-02-01), Sebb et al.
patent: 4793985 (1988-12-01), Price et al.
patent: 4935391 (1990-06-01), Caropreso et al.
patent: 5084254 (1992-01-01), Golley

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